Sheet-metal revolving window.



No. 755,232. PATBNTED MAR. 22, 1904.

. J. T. LEONARD.

SHEET MBT-AL REVOLVING WINDOW.

- APPLICATION 'FILED MAY 25, 1903.

N0 MODEL.

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j UNITED STATES Patentd March 22, 1904.

PATENT OEEICE.

JOHN. T.- LEONARD, OF NEW YORK, N. Y.

SHEET-METAL FIEVOLVING WINDOW/l SPECIFICATION forming part of Letters Patent N0. 755,232, dated March V224, 1904.-

l Application filed May 25, 1903. -Serial No. 158,696. (No model.)

To all whom it may con/cern:

Be it known that I, JOHN T. LEONARD, a citi- Zen of the United States of America, and a resident of the borough ofBronx, New York city, and State of New York, have invented certain new and useful Improvements in Sheet- Metal Revolving Windows, of which the following is a specification.

My invention consists ofimprovements in operating and controlling devices for the laterally-adjustable guide-rib andwind-stop devices on which the sashes slide up and down, said stops being adapted to retire from the runway-grooves of the sashes for releasing them for revolving, as hereinafter described, reference being made to the accompanying drawings, in which-- Figure 1 is a front elevation ofV a metallic window constructed according to my invention. Fig. 2 is a horizontal section of one side of the window on line l l of Fig. 1. Fig. 3 is a detail, partly in elevation and partly in Vertical section, of one side of the windowframe. Fig. 4. represents a side View and vertical section of one of the bearing-sockets carrying the crank-shaft employed, one at each side of the window, to shift the guide-rib and Wind-stop devices.

A represents one of the vertical side parts of the window-frame constructed of suitablybent sheet metal and having the usual vertical grooves t in the side with which the sashstiles b, also made of sheet metal, act.

d represents the usual laterally-adjustable sheet-metal guide-rib yand wind-stop devices, hereinafter called stops, on which the sashes slide, said stops having the usual ri-bs c engaging the corresponding grooves e of the sashes and controlling the sashes in their ordinary use, but being retractable within the grooves c sufliciently for releasing the sashes when it is desirable to revolve them on their pivots f for cleaning the glass, for which they are pivoted at f, as usual, to blocks g, suspended by the counterbalance-weights t and cords c', carried on the pulleys j at the top of the window.

The means which I now propose for so shifting the stops out and in laterally for engagsaid inclines acting on any iixed object, as the lower edges m of notches n in the wall of the groove c of the window-frame, thrust the stop outward to engage the grooves e of the Vsashes and hold the stops in the normal positions for the sliding of the sashes, and for thrusting the stop in to release the sashes the upper end of each stop has an incline 0, which takes e'ect on any fixed object thereat, as the heel p of the pulley-bracket q, and shifts the stop back when the stop is temporarily thrust upward, and for so thrusting the stop upward and also for thrusting the lower end backward a backwardly-projecting yoke s is attached to the stop and extends through notch n inthe bottom plate of groove a of the frame, in which works a cranked shaft t, traversing the back space of the vertical part A of the frame horizontally and mounted in suitablyattached pivot-bearings u and c, so as to be turned by a socket wrench or key applied to the angular projecting end 'w of the shaft.

The adjustment of the crank-shaft and yokes is such that when the stop is out and down in the normal position, the part of the crank effecting the throw-thatl is to say, the wristpin-,being below the'axis and at the bend of the yoke and the axis being intermediate of said, bend and the stop, the turning of the crank against the end of the yoke, as indicated by the arrow w in Fig. 3, thrusts the stop backward and upward, and the crank locks the stop in the normal position, as the angle of the crank when the stop is down is such that upward thrust of the yoke on the crank, as by the friction of the sash when which is preferred; but it is to be understood that a separate crank-shaft maybe provided for each, if desired.

It will be seen that the notches 11,v through the bottoms of the grooves a of the vertical parts of frame A afford space for the projecting inclines when the stops are shifted up and also afford the fixed bearings for said inclines when the stops are shifted down, and said bearings also maintain the normal intermeshing of the ribs and grooves of the stops and the sash-Stiles.

What I claim as my invention is- 1. The combination with the verticallygrooved frame and sash and the telescopic stop having limited vertical movement, of the ineline on the upper end of the stop and the fixed part on the frame coacting therewith to effect lateral thrust ofthe upper part of the stop through limited lengthwise movement of the stop, and the crank and yoke to effect said lengthwise movement of the stop, and also to effect lateral movement of the lower part of the stop coincidently with said lateral movement of the upper part.

2. The combination with the verticallygrooved frame and sash and the telescopic stop having limited vertical movements, of the ineline and fixed part cooperating with one end of the stop and the crank and yoke coperating with the other end thereof both acting to thrust the stop back through limited lengthwise movement of the stop, and to effect such lengthwise movement.

3. The combination with the vertically- .grooved frame and sash and the telescopic stop JOHN T. LEONARD. litnessesz C. SEDGwIoK, J. M. HOWARD. 

